EP0863930B1 - Verfahren zur herstellung von lagerstabilen dispersionen eines verkapselten polyisocyanates und deren verwendung - Google Patents
Verfahren zur herstellung von lagerstabilen dispersionen eines verkapselten polyisocyanates und deren verwendung Download PDFInfo
- Publication number
- EP0863930B1 EP0863930B1 EP97938737A EP97938737A EP0863930B1 EP 0863930 B1 EP0863930 B1 EP 0863930B1 EP 97938737 A EP97938737 A EP 97938737A EP 97938737 A EP97938737 A EP 97938737A EP 0863930 B1 EP0863930 B1 EP 0863930B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- process according
- minutes
- reaction
- molecular weight
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/703—Isocyanates or isothiocyanates transformed in a latent form by physical means
- C08G18/705—Dispersions of isocyanates or isothiocyanates in a liquid medium
- C08G18/707—Dispersions of isocyanates or isothiocyanates in a liquid medium the liquid medium being a compound containing active hydrogen not comprising water
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/703—Isocyanates or isothiocyanates transformed in a latent form by physical means
- C08G18/705—Dispersions of isocyanates or isothiocyanates in a liquid medium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8038—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3225
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/807—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with nitrogen containing compounds
- C08G18/808—Monoamines
Definitions
- the dimerization of aromatic and aliphatic diisocyanates to uretdiones has long been known, and the Dimers obtained are, for example, for the production heat-reactive powder coatings (e.g. DE-A1-23 12 391).
- the dimerization is generally carried out in Solvents or in bulk, among other things substituted Pyridines, trialkylphosphines, trialkylphosphites and imidazoles can be used as catalysts.
- Uretdione dimers are preferred as solid polyisocyanates or the urea dimers of methylene diphenyl diisocyanate (MDI) and tolylene diisocyanate (TDI) used.
- MDI methylene diphenyl diisocyanate
- TDI tolylene diisocyanate
- the solid diisocyanate can also be reacted with a Be modified polyol, e.g. in DE-A1-38 26 447 is described.
- the so-called encapsulation of the solid diisocyanates can be in an inert medium or directly in the hydrogen-active Components take place if the used for the polyadduct formation aliphatic or cycloaliphatic amine before addition of the polyisocyanate (e.g. DE-A1-33 43 124).
- EP-A1-0 148 462 mentions a so-called in-situ process for the dimerization of aromatic diisocyanates in polyols with water to form the urea dimer without the polyol reacting to a significant extent with the isocyanate, it is even found for this very specific and complete dimerization reaction does not indicate that encapsulation of the solid diisocyanate products would still be possible in the same process.
- the object of the present invention was to create a Process for the preparation of storage-stable dispersions of encapsulated by adduct formation with primary aliphatic amines Toluene diisocyanate uretdione, which is a one-pot process can be carried out.
- the dispersions prepared in accordance with the invention from encapsulated polyisocyanate can be mixed with further hydrogen-active compounds, such as polyols, and optionally further polyamines of low molecular weight (so-called chain extenders or crosslinking agents) and high molecular weight, in order to achieve specific properties of the cured polyurethanes ,
- the invention prepared dispersions with fillers, Chain extenders, optionally with solid polymers Melting points up to 80 ° C and other usual additives, such as catalysts, together to form storage-stable adhesive compositions be formulated.
- This could be due to Reason of the literature references, in particular DE-A1-37 27 128, not be expected.
- the latter publication deals the difficulty, along with fillers, and possibly with solid additives, storage stable and pumpable Get preparations.
- the problem was solved there that the fillers with polyols and polyamines separate second component, which are only brief is mixed before use.
- the toluenediisocyanate is introduced expedient in one with regard to the isocyanate reaction inert medium for reaction, especially in a plasticizer of moderate polarity, and preferably in a phthalate plasticizer based on at least an alcohol with 8 to 12 carbon atoms.
- plasticizers such as those, can also be used for pasty and sprayable polyurethane formulations are common, provided that polarity and solvency, expressed as solubility parameter ⁇ , not over 10, preferably not more than 9.
- reaction is carried out in a polyol, used expediently one with a molecular weight from 500 to 20,000, preferably a polyol, which exclusively has secondary hydroxyl groups, and in particular a polyether polyol based on propylene oxide.
- reaction of the toluene diisocyanate is expediently carried out at temperatures below 20 ° C, preferably at temperatures below 15 ° C.
- the deactivation of the dimerization catalyst is carried out conveniently by means of benzoyl chloride.
- the primary monoamine it is expedient to use one with 4 to 18 carbon atoms, preferably one those with 6 to 12 carbon atoms, and in particular n-octylamine.
- the primary aliphatic polyamine is advantageously used for the most part a triamine based on Polyoxyethylene with a molecular weight of about 400, such as e.g. Jeffamin T-403 (Air Products), one if one rapid curing is desired. But it can also or alternatively, aliphatic diamines with a molecular weight from 50 to 500, preferably from 80 to 200, is used become.
- aliphatic diamines are as follows Connections are used: unsubstituted or 3,3'-dimethlyl-substituted 4,4'-diaminodicyclohexylmethane, Isophoronediamine, diamino-m-xylene, 1,2-diaminocyclohexane, neopentanediamine, 2-methyl-1,5-diaminopentane, Jeffamin D-400.
- Polyol as a reaction medium during the reaction additionally a short-chain aliphatic diamine, especially ethylenediamine, to.
- a long chain Polyamine is preferably a di or Triamine based on polyoxyethylene with a molecular weight used by more than 1000, especially by more than 3000, as they are branded by Air Products Jeffamine with different chain lengths and molecular weights are available.
- polyamide polymers e.g. from the Schering company, in the aforementioned Molecular weight range can be used.
- the dispersions obtained according to the invention are suitable especially for the production of storage-stable thermosetting Polyurethane adhesives or polyurethane sealants or storage-stable thermosetting polyurethane coating materials.
- the dispersions obtained can be treated with at least one (Further) polyol and / or polyamine, each with a molecular weight from 1000 to 20,000 are mixed, expediently with the addition of at least one catalyst for the polyurethane reaction.
- fillers and / or Additives e.g. UV stabilizers, adhesion promoters, such as Silanes, drying agents, such as molecular sieves, or rheology aids, such as amorphous synthetic silica become.
- the functionality of these polyols and polyamines can be between 2 to 4, preferably 2 to 3, lie.
- the in situ microencapsulated polyisocyanate was now degassed and stored in a closed container. It was stable for several weeks without a nitrogen blanket. In the DSC (differential scanning calorimeter) it showed an exothermic peak at 110 ° C.
- the in situ microencapsulated polyisocyanate has now been degassed and stored in a closed container. It was without Nitrogen overlay stable for several weeks. In the DSC (Different Scanning calorimeter) it showed an exothermic peak at 125 ° C.
- the in situ microencapsulated polyisocyanate has now been degassed and stored in a closed container. It was without Nitrogen overlay stable for several weeks. In the DSC (Different Scanning calorimeter) it showed an exothermic peak at 119 ° C.
- the in situ microencapsulated polyisocyanate has now been degassed and stored in a closed container. It was without Nitrogen overlay stable for several weeks. Im Different Scanning calorimeter showed an exothermic peak 126 ° C.
- the in situ microencapsulated polyisocyanate was now degassed and stored in a closed container. It was stable for several weeks without a nitrogen blanket. In the DSC (Different Scanning Calorimeter) it showed an exothermic peak at 96 ° C.
- Example 1 In a laboratory planetary mixer, 133.0 g of the in Example 1 described in situ prepared polyisocyanate dispersion and 175.0 g of an amine-terminated prepolymer with a Val weight from 2600 (based on Jeffamine D-2000, T-5000 and toluene diisocyanate in excess) weighed and for 5 minutes at 30 ° C and 1013 mbar (101,300 Pa) mixed. After that the pressure was on 20 mbar (2000 Pa) reduced and mixed for 15 minutes. It was then aerated, and there were 21.0 g of carbon black as well 17.5 g of chalk and 3.5 g of molecular sieve 3A were weighed in and mixed for 5 minutes at 30 ° C and 1013 mbar (101,300 Pa). The pressure was then reduced to 20 mbar (2000 Pa) and mixed for 15 minutes.
- Val weight from 2600 (based on Jeffamine D-2000, T-5000 and toluene diisocyanate in excess) weighed and for 5 minutes at
- the adhesive mass obtained in this way was filled into a cartridge.
- the adhesive was even after storing several Weeks still pastos.
- DSC Different Scanning Calorimeter
- Example 2 In a laboratory planetary mixer, 252.0 g of that in Example 2 described in situ polyisocyanate dispersion and 59.5 g soot and weighed in for 5 minutes at 1013 mbar (101,300 Pa) and another 5 minutes at 20 mbar (2000 Pa) mixed in. Then it was ventilated, and it 24.5 g of chalk, 3.5 g of 3 A molecular sieve and 7.0 g of amorphous Weighed silica and at 513 for 5 minutes mbar (101,300 Pa) mixed. After that, the pressure on 20 mbar (2000 Pa) reduced and mixed for 15 minutes. Subsequently 3.5 g of DBTL (dibutyl tin dilaurate) were used as Weighed catalyst and at 10 mbar for 10 minutes (2000 Pa) mixed.
- DBTL dibutyl tin dilaurate
- the adhesive mass obtained in this way was filled into a cartridge.
- the adhesive was even after storing several Weeks still pasty.
- DSC Different Scanning Calorimeter
- Example 3 In a laboratory planetary mixer, 259.0 g of that in Example 3 described in situ polyisocyanate dispersion and 52.5 g soot and weighed in for 5 minutes at 1013 mbar (101,300 Pa) and another 5 minutes at 20 mbar (2000 Pa) mixed in. Then it was ventilated, and it 24.5 g of chalk, 3.5 g of 3 A molecular sieve and 7.0 g of amorphous Weighed silica and at 513 for 5 minutes mbar (101,300 Pa) mixed. After that, the pressure on 20 mbar (2000 Pa) reduced and mixed for 15 minutes. Subsequently 3.5 g of DBTL (dibutyl tin dilaurate) were used as Weighed catalyst and at 10 mbar for 10 minutes (2000 Pa) mixed.
- DBTL dibutyl tin dilaurate
- the adhesive composition thus obtained was placed in a cartridge bottled.
- the glue was off even after storage still pasty for several weeks.
- DSC Different Scanning Calorimeter
- the material was mixed between two with Betaprime 5001 (company Gurit-Essex AG) primed glass test pieces in a layer thickness of 2 mm for 20 minutes at 140 ° C and after the Cooling subjected to a tensile shear test. There was one Tensile shear strength of 2.1 MPa. After a week had gone tensile shear strength increased to 4.1 MPa.
- the adhesive mass obtained in this way was filled into a cartridge.
- the adhesive was even after storing several Weeks still pasty.
- DSC Different Scanning Calorimeter
- the adhesive was sandwiched between two overlapping test panels a KTL primer (cataphoretic dip painting) an area of 1.2 x 2.5 cm evenly to a layer thickness of 1 mm spread and 30 seconds in an induction coil to max. Heated 160 ° C. Then the test specimen was placed loaded with a weight of 18 kg without the adhesive joint crack.
- KTL primer cataphoretic dip painting
- the adhesive was applied between two with primer (beta primer VP 1706 from Gurit-Essex AG) primed test sheets Aluminum brought in a layer thickness of 2 mm. It was Cured for 30 minutes at 140 ° C. After one day it was Tensile shear strength 3.0 MPa, after 7 days 6.3 MPa.
- Example 5 300 g of that in Example 5 were placed in a laboratory planetary mixer described in situ polyisocyanate mass and 25 g of carbon black weighed in and at 20 mbar for 5 minutes (2000 Pa) mixed in. Then it was ventilated, and it 20.0 g of chalk and 5 g of molecular sieve 3A were in the course of 5 minutes at 20 ° C and 1013 mbar (101,300 Pa) mixed. The pressure was then reduced to 20 mbar (2000 Pa) and Stirred for 15 minutes.
- the adhesive mass obtained in this way was filled into a cartridge.
- the adhesive was even after storing several Weeks still pasty.
- DSC Different Scanning Calorimeter
- the adhesive was between two, made of SMC (Sheet Molding Compound) produced, overlapping tensile shear test specimens, on an area of 1.2 x 2.5 cm, evenly applied and heated in the high-frequency field for 1 minute. in the The test specimen was clamped in place and weighed 12 kg loaded. The bond passed this test until her Abort after more than an hour.
- SMC Sheet Molding Compound
- the in situ microencapsulated polyisocyanate has now been degassed and stored in a closed container. It was without Nitrogen overlay stable for several weeks. In the DSC (Different Scanning calorimeter) it showed an exothermic peak at 138 ° C.
- Example 13 The mixture from Example 13 was on a test plate an area of 1.2 x 2.5 cm in a layer thickness of 2 mm applied evenly and for 5 minutes at 140 ° C activated. After 4 hours, a second test sheet was placed on the Glue applied. After a week the examinee was complete hardened.
- the adhesive composition thus obtained was placed in a cartridge bottled.
- the glue was off even after storage still pasty for several weeks.
- DSC Different Scanning Calorimeter
- tributylphosphine were then used as the catalyst added and the whole mixture with vigorous stirring Reacted at 15 ° C for 1 hour. After that 1.3 g of benzoyl chloride were added and again for 15 minutes Brought reaction. The mixture was then mixed with 7.7 g of octylamine added and reacted again at 15 ° C for 15 minutes brought. Then 26.4 g of neopentane mix (67.1% a di-nonyl phthalate plasticizer and 32.9% 2,2-dimethyl-1,3-diaminopropane) added and at 15 ° C for 15 minutes brought to reaction.
- neopentane mix 67.1% a di-nonyl phthalate plasticizer and 32.9% 2,2-dimethyl-1,3-diaminopropane
- the in situ microencapsulated polyisocyanate has now been degassed and kept in a closed container. It was without Nitrogen overlay stable for several weeks. In the DSC (Different Scanning calorimeter) it showed an exothermic peak at 119 ° C.
- Example 16 In the laboratory planetary mixer, 308.3 g of that in Example 16 described in situ polyisocyanate mass and Weighed in 23.5 g of carbon black (Elftex 125) and added for 5 minutes 1013 mbar (101,300 Pa) and another 5 minutes at 20 mbar (2000 Pa) mixed in. Then it was ventilated, and it 16.8 g of amorphous silica (Aerosil R 974) were weighed out and mixed for 5 minutes at 1013 mbar (101,300 Pa). The pressure was then reduced to 20 mbar (2000 Pa) and Stirred for 15 minutes. Then 1.4 g of DBTL (Dibutyl tin dilaurate) weighed out as a catalyst and during Mixed for 20 minutes at 20 mbar (2000 Pa).
- DBTL Dibutyl tin dilaurate
- the adhesive mass was filled into a cartridge.
- the Adhesive was also on after several weeks of storage still pasty.
- DSC Different Scanning Calorimeter
- the test specimen was completely hardened after one week. It the tensile shear strength was 3.1 MPa.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
- Verfahren zur Herstellung von lagerstabilen Dispersionen eines verkapselten Polyisocyanates, wie sie in den Ansprüchen 1 bis 21 umschreiben sind; und
- Verwendungen der so erhaltenen lagerstabilen Dispersionen, wie sie in den Ansprüchen 22 bis 25 umschrieben sind.
Claims (25)
- Verfahren zur Herstellung von lagerstabilen Dispersionen von durch oberflächliche Adduktbildung mit primären aliphatischen Polyaminen verkapseltem Toluylendiisocyanat-uretdion, dadurch gekennzeichnet, dass man das Verfahren als Eintopfverfahren durchführt, indem man:(a) monomeres Toluoldiisocyanat in einem Polyol oder einem bezüglich der Isocyanat-Reaktion inerten flüssigen Medium von mässiger Polarität, in welchem das Urethdion praktisch unlöslich ist, bei Temperaturen unterhalb 30 °C in Gegenwart eines Dimerisierungskatalysators zur Reaktion bringt;(b) darauf den Dimerisierungskatalysator desaktiviert;(c) darauf das Reaktionsprodukt mit 10 bis 30 Mol-% des eingesetzten Toluoldiisocyanates eines primären Monoamins umsetzt; und(d) anschliessend mindestens ein primäres Polyamin in einer Menge von 40 bis 80 Mol-%, bezogen auf die freien Isocyanat- Gruppen, zusetzt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man das Toluoldiisocyanat in einem bezüglich der Isocyanat-Reaktion inerten Medium zur Reaktion bringt.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass man als bezüglich der Isocyanat-Reaktion inertes Medium einen Weichmacher von mässiger Polarität, in welchem das Urethdion praktisch unlöslich ist und einen Löslichkeitsparameter δ von weniger als 10, vorzugsweise weniger als 9, aufweist, einsetzt.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass man als Weichmacher einen Phthalatweichmacher auf der Basis von mindestens einem Alkohol mit 8 bis 12 Kohlenstoffatomen einsetzt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man die Reaktion in einem Polyol mit einem Molekulargewicht von 500 bis 20'000 durchführt.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass man ein Polyol einsetzt, welches ausschliesslich sekundäre Hydroxy-Gruppen aufweist.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass man als Polyol ein Polyetherpolyol einsetzt.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass man ein Polyetherpolyol auf der Basis von Propylenoxyd einsetzt.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass man die Umsetzung des Toluoldiisocyanates bei Temperaturen unterhalb 20 °C durchführt.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass man die Umsetzung des Toluoldiisocyanates bei Temperaturen unterhalb 15 °C durchführt.
- Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass man die Desaktivierung des Dimerisierungskatalysators mittels Benzoylchlorid durchführt.
- Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass man als primäres Monoamin ein Monoamin mit 4 bis 18 Kohlenstoffatomen einsetzt.
- Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass man als primäres Monoamin ein Monoamin mit 6 bis 12 Kohlenstoffatomen einsetzt.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass man als Monoamin n-Octylamin einsetzt.
- Verfahren nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass man als primäres aliphatisches Polyamin zum überwiegenden Teil ein trifunktionelles Produkt auf der Basis von Polyoxyethylen mit einem Molekulargewicht von 200 bis 600, vorzugsweise von 350 bis 450, einsetzt.
- Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass man während der Umsetzung zusätzlich ein kurzkettiges Diamin, vorzugsweise Ethylendiamin, zusetzt.
- Verfahren nach Anspruch 15 oder 16, dadurch gekennzeichnet, dass man am Schluss zusätzlich ein Polyamin auf der Basis von Polyoxyethylen mit einem Molekulargewicht von mehr als 1000 zugibt.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass man als primäres aliphatisches Polyamin zum überwiegenden Teil ein aliphatisches Diamin mit einem Molekulargewicht von 50 bis 500, vorzugsweise von 80 bis 200, einsetzt.
- Verfahren nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass man als primäres aliphatisches Polyamin zusatzlich ein aliphatisches Diamin mit einem Molekulargewicht von 50 bis 500, vorzugsweise von 80 bis 200, einsetzt.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, dass man ein aliphatisches Diamin einsetzt, welches bezüglich mindestens einer Amingruppe sterisch gehindert ist.
- Verfahren nach Anspruch 17, dadurch gekennzeichnet, dass man am Schluss zusätzlich ein Polyamin auf der Basis von Polyoxyethylen mit einem Molekulargewicht von mehr als 3000 zugibt.
- Verwendung einer Dispersion nach Anspruch 1 zur Herstellung eines lagerstabilen hitzehärtbaren Polyurethan-Klebstoffes oder Polyurethan-Dichtungsstoffes oder einer lagerstabilen hitzehärtbaren Polyurethan-Beschichtungsmasse, dadurch gekennzeichnet, dass man die Dispersion mit mindestens einem Polyol und/oder Polyamin mit je einem Molekulargewicht von 1000 bis 20'000 vermischt.
- Verwendung nach Anspruch 22, dadurch gekennzeichnet, dass man ausserdem mindestens einen Katalysator für die Polyurethan-Reaktion zugibt.
- Verwendung nach Anspruch 22 oder 23, dadurch gekennzeichnet, dass man ausserdem Füllstoffe und/oder Additive zugibt.
- Verwendung nach Anspruch 22, dadurch gekennzeichnet, dass man als Polyol einen Polyester und/oder einen Polyether und/oder ein Polycarbonat und/oder ein Polyurethan und/oder Polybutadien und als Polyamin ein Polyether-Polyamin einsetzt.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2372/96 | 1996-09-27 | ||
CH237296 | 1996-09-27 | ||
CH237296 | 1996-09-27 | ||
PCT/CH1997/000350 WO1998013406A1 (de) | 1996-09-27 | 1997-09-18 | Verfahren zur herstellung von lagerstabilen dispersionen eines verkapselten polyisocyanates und deren verwendung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0863930A1 EP0863930A1 (de) | 1998-09-16 |
EP0863930B1 true EP0863930B1 (de) | 2004-07-21 |
Family
ID=4232236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97938737A Expired - Lifetime EP0863930B1 (de) | 1996-09-27 | 1997-09-18 | Verfahren zur herstellung von lagerstabilen dispersionen eines verkapselten polyisocyanates und deren verwendung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0863930B1 (de) |
DE (1) | DE59711789D1 (de) |
ES (1) | ES2229385T3 (de) |
WO (1) | WO1998013406A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0949310A1 (de) * | 1998-04-07 | 1999-10-13 | Eftec Ag | Lagerstabiler, latent reaktiver Schmelzklebstoff und ein Verfahren zum Verkleben eines modularen Bauteils |
DE10062641A1 (de) * | 2000-12-15 | 2002-06-27 | Henkel Kgaa | Photosensitive Mikrokapseln, Verfahren zu deren Herstellung und deren Verwendung in Klebstoffen |
FR2933986B1 (fr) * | 2008-07-16 | 2010-08-27 | Arkema France | Utilisation d'un promoteur d'adherence encapsule dans un joint de colle aqueux collant deux substrats dont l'un au moins comprend un materiau (tpe-pa) |
EP3027669B1 (de) * | 2013-07-31 | 2020-05-13 | Dow Global Technologies LLC | Pu-strukturkleber zum kleben von verbundstoffen |
EP3698950A1 (de) | 2019-02-21 | 2020-08-26 | Henkel AG & Co. KGaA | Spritzgiessverfahren mit verwendung von 1k-polyurethan |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3112054A1 (de) * | 1981-03-27 | 1982-10-07 | Basf Ag, 6700 Ludwigshafen | Lagerstabile, hitzhaertbare stoffmischungen aus polyisocyanat und polyol, verfahren zu deren herstellung und verwendung |
-
1997
- 1997-09-18 WO PCT/CH1997/000350 patent/WO1998013406A1/de active IP Right Grant
- 1997-09-18 EP EP97938737A patent/EP0863930B1/de not_active Expired - Lifetime
- 1997-09-18 ES ES97938737T patent/ES2229385T3/es not_active Expired - Lifetime
- 1997-09-18 DE DE59711789T patent/DE59711789D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2229385T3 (es) | 2005-04-16 |
EP0863930A1 (de) | 1998-09-16 |
WO1998013406A1 (de) | 1998-04-02 |
DE59711789D1 (de) | 2004-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3888427T2 (de) | Grundierlackfreier Klebstoff für glasfaserverstärkte Polyestersubstrate. | |
DE69711086T3 (de) | Polyurethandichtungszusammensetzungen | |
DE69109762T2 (de) | Feuchtigkeitshärtende Polyaldimin enthaltende Polyurethanzusammensetzung. | |
EP0996655B1 (de) | Thixotrope zwei-komponenten-polyurethansysteme | |
DE69412231T2 (de) | Polyurethan-reaktionssystem mit blockierter katalysatorkombination | |
DE2131299C3 (de) | Durch Hitzeeinwirkung härtbare Gemische und Verfahren zur Herstellung von Formkörpern aus diesen Gemischen | |
EP0165437B1 (de) | Verfahren zur Herstellung von festen Polyisocyanaten retardierter Reaktivität, polymerumhüllte, feinteilige Polyisocyanate und ihre Verwendung | |
EP1456274B1 (de) | Verwendung eines Isocyanatofunktionellen Silans als haftvermittelnden Zusatz in Polyurethan-Schmelzklebstoffen | |
EP3263618A1 (de) | Alkoxysilan-funktionalisierte allophanate | |
DD269155A5 (de) | Feuchtigkeitshaertende dichtungs- und klebemittel | |
EP1674546A1 (de) | Feuchthärtende Zusammensetzung und Schmelzklebstoff | |
EP0500495A2 (de) | Warmhärtende Zusammensetzung | |
DE68911047T2 (de) | Aus Mischungen von Polypropylenoxid-Polyolen und von auf organischen Silicon-Blockcopolymeren basierenden Polyol-Zwischenprodukten hergestellte Polyurethane. | |
EP1710228A2 (de) | Biuretverbindungen, ihre Herstellung und Verwendung sowie Zwischenprodukte zu ihrer Herstellung | |
DE102015207792A1 (de) | Polyurethan-basiertes Bindemittel-System | |
EP3749730B1 (de) | Zweikomponenten-strukturklebstoffe | |
EP1172390A1 (de) | Lagerstabile Isocyanatdispersionen | |
EP0863930B1 (de) | Verfahren zur herstellung von lagerstabilen dispersionen eines verkapselten polyisocyanates und deren verwendung | |
EP0918809B1 (de) | Verfahren zur herstellung von biuretgruppen enthaltenden polyisocyanaten aus (cyclo)aliphatischen diisocyanaten | |
DE2651479C2 (de) | Elastisches Klebemittel | |
EP3824010B1 (de) | Verfahren zum applizieren eines ein schmelzbares polymer enthaltenden materials mit blockierten nco-gruppen | |
DE69734556T2 (de) | Klebstoffzusammensetzungen auf Polyurethanbasis und auf Basis einer Polyaminsuspension, Herstellungsverfahren und Verwendung | |
DE10210956B4 (de) | Reaktives Einkomponenten-Beschichtungs- und/oder -Klebstoffgranulat und Verfahren zu seiner Herstellung sowie seine Verwendung | |
DE19637375A1 (de) | Uretdiongruppenhaltige Polyisocyanate, ein Verfahren zu ihrer Herstellung sowie deren Verwendung | |
EP0473905A2 (de) | Bei Raumtemperatur härtbare Epoxidharzmischungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19980428 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: DOW AUTOMOTIVE AG |
|
17Q | First examination report despatched |
Effective date: 20030404 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 20040721 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: DOW EUROPE GMBH |
|
REF | Corresponds to: |
Ref document number: 59711789 Country of ref document: DE Date of ref document: 20040826 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2229385 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050422 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130911 Year of fee payment: 17 Ref country code: ES Payment date: 20130813 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20130910 Year of fee payment: 17 Ref country code: GB Payment date: 20130918 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59711789 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140918 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150529 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140918 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140930 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20151026 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140919 |